Well-dressed in mansion at Tyrone (5)
I believe the answer is:
natty
'well-dressed' is the definition.
(I've seen this in another clue)
'in mansion at tyrone' is the wordplay.
'in' says the answer is hidden in the clue.
'NATTY' is hidden within 'mansion at tyrone'.
(Other definitions for natty that I've seen before include "Stylishly dressed" , "Smartly dressed" , "Smart, spruce" , "Stylish" , "Informally neat and well-dressed" .)